Dibutyl Phthalate (DBP) is produced by the reaction of n-butanol with phthalic anhydride. It is a transparent oily liquid without visible impurities, with aromatic smell.Soluble in most organic solvents and hydrocarbons. DBP is a commonly used plasticizer. It is also used as an additive to adhesives or printing inks. It is also used as an ectoparasiticide.